<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
	<meta name="Keywords" content="">
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>test</title>
	<style type="text/css">
		body {
			background: url(http://ot0ak6eri.bkt.clouddn.com/01.jpg); no-repeat:top center;
			font-size: 12px;
			font-family: "微软雅黑";
		}


		* {
			margin: 0;
			padding: 0;
		}
		/* screen start*/
		.screen {
			width: 300px;
			height: 100px;
			background: #669900;
		}


		.dm {
			width: 100%;
			height: 100%;
			position: absolute;
			top: 0;
			left: 0;
			display: none;
		}


		.dm .d_screen .d_del {
			width: 38px;
			height: 38px;
			background: #600;
			display: block;
			text-align: center;
			line-height: 38px;
			text-decoration: none;
			font-size: 20px;
			color: #fff;
			border-radius: 19px;
			border: 1px solid #fff;
			z-index: 2;
			position: absolute;
			right: 20px;
			top: 20px;
			outline: none;
		}


		.dm .d_screen .d_del:hover {
			background: #F00;
		}


		.dm .d_screen .d_mask {
			width: 100%;
			height: 100%;
			background: #000;
			position: absolute;
			top: 0;
			left: 0;
			opacity: 0.6;
			filter: alpha(opacity = 60);
			z-index: 1;
		}


		.dm .d_screen .d_show {
			position: relative;
			z-index: 2;
		}


		.dm .d_screen .d_show div {
			font-size: 26px;
			line-height: 36px;
			font-weight: 500;
			position: absolute;
			top: 76px;
			left: 10;
			color: #fff;
		}
		/*end screen*/


		/*send start*/
		.send {
			width: 100%;
			height: 76px;
			position: absolute;
			bottom: 0;
			left: 0;
			border: 1px solid red;
		}


		.send .s_filter {
			width: 100%;
			height: 76px;
			background: #000;
			position: absolute;
			bottom: 0;
			left: 0;
			opacity: 0.6;
			filter: alpha(opacity = 60);
		}


		.send  .s_con {
			width: 100%;
			height: 76px;
			position: absolute;
			top: 0;
			left: 0;
			z-index: 2;
			text-align: center;
			line-height: 76px;
		}


		.send .s_con .s_text {
			width: 800px;
			height: 36px;
			border: 0;
			border-radius: 6px 0 0 6px;
			outline: none;
		}


		.send .s_con .s_submit {
			width: 100px;
			height: 36px;
			border-radius: 0 6px 6px 0;
			outline: none;
			font-size: 14px;
			color: #fff;
			background: #65c33d;
			font-family: "微软雅黑";
			cursor: pointer;
			border: 1px solid #5bba32;
		}


		.send .s_con .s_submit:hover {
			background: #3eaf0e;
		}
		/*end send*/
	</style>


</head>
<body>
<a href="#" id="startDm">Start Test</a>
<!-- dm start -->
<div class="dm">
	<!-- d_screen start -->
	<div class="d_screen">
		<a href="#" class="d_del">X</a>
		<div class="d_mask"></div>
		<div class="d_show">
		</div>
	</div>
	<!-- end d_screen -->


	<!-- send start -->
	<div class="send">
		<div class="s_filter"></div>
		<div class="s_con">
			<input type="text" class="s_text" /> <input type="button"
														value="发表评论" class="s_submit" id="btn"/>
		</div>
	</div>
	<!-- end send -->
</div>
<!-- end dm-->
<script type="text/javascript"
		src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.8.0.js"></script>

<script type="text/javascript" >

    String.prototype.endWith=function(str){
        if(str==null||str==""||this.length==0||str.length>this.length)
            return false;
        if(this.substring(this.length-str.length)==str)
            return true;
        else
            return false;
        return true;
    }

    String.prototype.startWith=function(str){
        if(str==null||str==""||this.length==0||str.length>this.length)
            return false;
        if(this.substr(0,str.length)==str)
            return true;
        else
            return false;
        return true;
    }
</script>
<!--<script type="text/javascript" src="websocket.js"></script>-->
<script type="text/javascript">
    $(function() {
      $("#startDm,.dm").toggle(1000);
        $("#startDm,.d_del").click(function() {
            $("#startDm,.dm").toggle(1000);
//init_screen();
        });
        $("#btn").click(function(){
            send();
        });
        $(".s_text").keydown(function() {
            var code = window.event.keyCode;





            if (code == 13)//回车键按下时，输出到弹幕


            {
                send();
            }
        });


    });


    function launch()
    {

        var _height = $(window).height();
        var _left = $(window).width() - $("#"+index).width();
        var time=10000;
        if(index%2==0)
            time=20000;
        _top+=80;
        if(_top>_height-100)
            _top=80;
        $("#"+index).css({
            left:_left,
            top:_top,
            color:getRandomColor()

        });
        $("#"+index).animate({
                left:"-"+_left+"px"},
            time,
            function(){});
        index++;
    }



	/* //初始化弹幕
	 function init_screen() {
	 var _top = 0;
	 var _height = $(window).height();
	 $(".d_show").find("div").show().each(function() {
	 var _left = $(window).width() - $(this).width();
	 var time=10000;
	 if($(this).index()%2==0)
	 time=20000;
	 _top+=80;
	 if(_top>_height-100)
	 _top=80;
	 $(this).css({
	 left:_left,
	 top:_top,
	 color:getRandomColor()

	 });
	 $(this).animate({
	 left:"-"+_left+"px"},
	 time,
	 function(){});


	 });
	 } */

    //随机获取颜色值
    function getRandomColor() {
        return '#' + (function(h) {
                return new Array(7 - h.length).join("0") + h
            })((Math.random() * 0x1000000 << 0).toString(16))
    }
</script>

<script type="text/javascript">

    var websocket=null;
    var _top=80;
    var index=0;

    var host=window.location.host;
    //判断当前浏览器是否支持WebSocket
    if('WebSocket' in window){
        websocket=new WebSocket("ws://localhost:80/socket.io/?user={\"realname\":\"仓老师\",\"userId\":30660,\"avatar\":\"//f1.ykt100.com/group1/M00/00/08/rBBYB1xLr2yAXlWKAACH9BKkxKo358.png\",\"role\":\"te\",\"roomName\":\"jzjyy755\",\"groupName\":1,\"deviceType\":\"\"}&EIO=3&transport=websocket");
    }
    else{
        alert("Not Support WebSocket!");
    }


    //连接发生错误的回调方法
    websocket.onerror = function(){
        setMessageInnerHTML("error");
    };

    //连接成功建立的回调方法
    websocket.onopen = function(event){
        setMessageInnerHTML("open");
    }

    //接收到消息的回调方法
	// 收到服务器发送的消息
    websocket.onmessage = function(){
        setMessageInnerHTML(event.data);
    }

    //连接关闭的回调方法
    websocket.onclose = function(){
        setMessageInnerHTML("close");
    }


    //监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
    window.onbeforeunload = function(){
        websocket.close();
    }


    //将消息显示在网页上
    function setMessageInnerHTML(innerHTML){
        //修改背景图
        var imgurl;
        if (innerHTML.startWith("~background,")) {
            var cmd = innerHTML;
            imgurl = cmd.split(",")[1];
            document.body.style.background = "url("+imgurl+")";
        }else{
            $(".d_show").append("<div id='"+index+"'>"+ innerHTML + "</div>");
		}

        launch();
    }


    //发送消息
    function send(){
        //var message = document.getElementById('text').value;
        var message = $(".s_text").val();
        $(".s_text").val("");
        websocket.send(message);
    }
</script>

</body>
</html>
